Had to show certain access links to different user-groups and in the same time all to the admin, what worked really good. The documentation is complete and understandable. Took me about ten minutes to configure how needed.
And a side-effect: Did me make think over my complicated access structure, what was fun!

I tried it and liked it. The developing is on a fast pace. On the website it is already 1.5.8.
I liked it so much that I contributed German an Portuguese (Brazil) Language!